The Xenadrine NRG Review

Green Tea Extract is utilized to increase fat metabolism as well as aide in weight loss and weight loss management.

Guarana- The active constituent of guarana is caffeine, which means that it should not be used alongside ephedrine as either a dietary aid or in order to stimulate performance. The American Food and Drug Administration has not tested its effectiveness or its purity as they do not class it as a drug. Guarana has many other names including Brazilian cocoa and may be a constituent of non alcoholic drinks imported from South America. Because of possible adverse reactions it is not recommended for anyone with a heart condition or who has kidney disease, high blood pressure or who suffers from anxiety.

L-Theanine is very commonly found in tea and is an amino acid, biochemically related to glutamine. The psychoactive properties of theanine are derived from the ability to cross the blood brain barrier. It has been proven that theanine can reduce stress, promote relaxation and improve alertness and mood when imbibed together with caffeine, a natural combination found in any tea, especially green tea. Gamma-aminobutyric acid levels are increased, when theanine is ingested or imbibed, as are serotonin and dopamine levels. It is believed that l-theanine is aiding the immune system by strengthening the capacity of delta T cells. Laboratory tests have proven that blood pressure reduction and lowering of 5-hydroxyindoles in the brain are promoted by theanine.

L-Tyrosine is a common amino acid and a para-isomer of tyrosine. It is deemed organic because of the carbon atom present and it is nonessential to survival, but works as a building block of protein. It is also viewed as a precursor of dopamine, which has several effects, like offsetting fatigue, mental and physical, as well as increasing the impression of well being. When the amino acid phenylalanine is broken down, L-Tyrosine can be won completely naturally. Besides being a precursor of the aforementioned neurotransmitter dopamine, L-Tyrosine is also deemed a precursor to some adrenal hormones, namely epinephrine and norepinephrine. In body building circles this supplement is popular to offset fatigue after a hard training or competition, but also to raise mental alertness while working out.

Norambrolide, or fermented salvia sclarea leaf extract. Norambrolide is thought to increase cAMP (cyclic adenosine monophosphate) levels in the body through the stimulation of the "adenylate cyclase" (AC) enzyme. This stimulation is believed to help activate increased fat burning.

Vitamin B12 is a water-souble member of the vitamin B complex. Requirements are in the microgram range, which is lower than the milligram range of the other B vitamins. Vitamin B12 is involved in the production of red blood cells and is usually known as the anti-anemia vitamin.

Yerba Matte Pronounced, YARE-ba MAH-tay, yerba mate is a shrub that belongs to the holly family. A Key Element in Xenadrine NRG Yerba mate contains the following vitamins, minerals and additional compounds: Vitamin A to Vitamin C Vitamin E Vitamin B1 Vitamin B2 Vitamin Niacin Vitamin B5 Vitamin B complex Minerals: Calcium Iron Manganese Magnesium Potassium Phosphorus Selenium Additional Compunds: Flavonols Polyphenols Antioxidants Pantothenic Acid and more The leaves of yerba mate have been found to offer strength while the stems inspire energy.